Backwater floor drain



July 3.0, 192

I E. W. N. BOOSEY BACKWATER FLOOR DRAIN Filed pee. 29, 1928 INVENTOR. [ah 4gp M/Mfiou: y

A TTORNE Y.

Patented July 30, 1929.

nnwann w. N; BoosEY, or nnrnornnronrenn BAQKWATEB FLOOR,- DRAIN.

Anplieation ;filedi:De ember- 2 1928a Serial Ko. .329,-234.'

his. nv ntion lates to back, t flee d ins d s. bjecti ta p ovide asimpli; fied cons ruct onyot edra eadn ndsun- 1 Ol QIF:;tlJ. v lv Preve ing 1 a k flow of ater hrough t e dra nhe daa atu ef h invention r iding prine pa ly i heprevision. of a separate casting of ;a cl 1 ara cter pr viding; a lepe di g hamb i t wo m:

par -meet pe ethe nlet i t edr iaheadi nd: ai wingh c r alvefor he. ut et; f -0. a these-id ch ambe oea ed abov it e ram head outlet all of which isheBeinaiter more spe; ciic lly d scr ed and c aime The p erred embodimentof dra n h d bodying my inve tion is sho n in. h a companying l'aw ngs in-.Whic

1 is a vertical se tion of; a y improved.

drain head Ri 2. i a p e -spectivei View, Of th infiertT ibile;membenOr hell car y n the Swing Check valves.

In, its: preferred. embodimenhibe inv ntiell consists of the drain head 1 which; of:

any desir d form in cross. section. and having ashonlderQ 131051Ql8d 36l12LG6I1l, its upper. end

and a vertical peripheral flange 3; This,

drain head has an outlet hula iatl'its bottom oifiseti-elativete which a drai .pipe 5 may e secured or caulkedv as indicatedsin 1.- The drain head is arranged to recelveethe; 1n-

7 sertible. casting 6- which; is shapedone side to provide a depending chamber 7 opelnatz its upper end to the inlet which is covered by the iIsuaLgratingS. llhisigrating it is to be noted, may rest directly upon a flange 9 with which the member 6 is provided at its upper end and seating on the flange 2 of the drain head.

If desired, a packing element 10 may be introduced between the flange 9 and the shoulder 2. This casting 6 has a sloping wall 11 extending from the flange on one side to and terminating with the depending vertical wall 12 of the member 6 which forms one wall of the chamber 7. The sloping wall 11 tends to direct material flowing into the head through the grating into the chamber 7 and these walls 11 and 12 and adjacent portion of the head form the outlines of a chamber 13 in the drain head directly over and open to the outlet conduit 5. The vertical wall 12 of the insertible casting 6 is apertured and threaded to receive a tubular member 14 having an angular finished face at its discharge end to receive the valve 15. This valve is supported on a lever 16 pivoted at 17 to the upper lVhilethe, valveopens freelyto flow of ,fl ui-d hed in h ad and. hamb rTit will instant y lese ande nback e i hr ug the conduit 5.

The sloping wall or floor 1,1 is provided;

with a circular threaded flange 18 ,to receive a removab e plug the casting 6;;andthus any material tending o: Blog n e, chamber 13.0.1: outlet pipe 5 is easily removed through the, aperture, closed by theiplug, 11. Thisaperturealso permits accessto, the valve and cleaning-ofthe seat therel'or or removal of the, valve and member let it repair is necessary.-

B'y. n-ovidinggg this. insertible shell or memher, 6 this draill'headmay, be used with or without aback water swing check valve, in c n-junction therewith and :thus in manufacturingthe drain head-- 1 may bemade oi standard form and where an installation is to be ma de; requiring a back: waterchecle valve this shell 6.. may 'be, inserted: Thus, the amount ofistock necessary .to. be. carried by them anufaeturer. may; be.- reduccd and by standardize ing the constructionit may be .soldonthe marketuatxatlower price.

Having thusbriefly dcscrihed ny invention-,whatilclaim is. I i

1. A back water floor drain comprising a hollow head having an inlet at one end and an outlet at the opposite end, said inlet end being formed with a shoulder and peripheral vertical flange, a cast shell having a peripheral flange adapted to seat on the shoulder of the said head, one portion of the shell being shaped to provide a depending chamber open at its top within the flange, said chamber having a vertical Wall and a sloping wall extending from near the top of the shell and clownwardly inclined terminating at the vertical wall, said shell when inserted providing a chamber in the drain head practically directly over the outlet to the head said depending portion of the shell having an outlet in the vertical wall near its bottom and a swing check valve supported exteriorly of the said depending chamber tending to close by flow backward through the outlet of the drain head.

2. A back water floor drain comprising a 19 permitting accesstothe chamber 13' without s necessity of removal of.

hollow head having an inlet end adapted to be positioned substantially flush with the floor surface, and an outlet of smaller diameter at below the upper open end of the shell, a wall orfloor upwardly inclined from the vertical wall to the peripheral portion of the shell providing for drainage of material into the said depending chamber of the shell, a discharge opening for the said chamber at about the bottom of the vertical wall, a swing check valve therefor opening by reason of flow entering the depending chamber and closing by reason of back flow through the outlet of the head.

3. A back water floor drain comprising a hollow head having an inlet end adapted to be positioned substantially flush with the floor surface and an outlet at the opposite end of smaller diameter, a detachable shell adapted for insertion in the head supported therein intermediate the inlet and outlet ends, said shell being formed to provide a depending chamber on one side, said chamber having a vertical wall occupying approximately the center plane of the shell and terminating below the upper end thereof, a downwardly inclined wall or floor extending from the side of the shell opposite the chamber and terminating at the said vertical wall, an aperture in the said inclined wall permitting access to the interior of the head at one side of the depending chamber, the said vertical wall having an opening near its lower end, a tubular member insertible therein providing an outlet, a swin check valve carried on the end of the said tubular member, the said valve being accessible through the said opening of the inclined floor and positioned approximately directly over the outlet for the head, and a removable grating at the inlet end of the head and covering the shell.

4. A back water floor drain comprising a hollow head having an inlet at one end and an outlet at theopposite end of smaller diameter and the axis of which is offset and parallel to the axis of the inlet, a shell insertible in the inlet and detachably secured to the head, said shell being formed with a depending chamber at one side of the outlet for the head, said shell having a vertical wall at about its center plane and an inclined wall extending from the top of the vertical wall to the side of the shell over the outlet, said inclined wall having a closable opening, and a swing check valve on the outer side of the said vertical 'wall directly over the outlet for the head providing a closure for the outlet opening provided for the depending chamber of the shell.

5. A back water floor drain comprising a hollow head having an inlet at one end and an outlet at the opposite end, a metal shell detachably secured therein in sealed relation thereto and into which fluid passes from the inlet of the head, said shell having a depending hollow portion on one side and an inclined wall extending from the hollow portion to the opposite side and, when assembled with the head, providing a chamber within the head beneath the inclined wall open directly to the outlet of the head, a check valve supported in the depending portion of the shell tending to open by a flow of fiui'd into the shell and to close by back pressure in the chamber open to the outlet.

In testimony whereof I sign this specification.

EDWARD w. N; BOOSEY. 

